tdd

Guide developers through the red-green-refactor cycle for Test-Driven Development.

1|Updated Jun 8, 2026

Search Tags:#tdd #feature development #red-green-refactor #coding best practices #test-first

Ready to run

npx skills add https://github.com/JuanMS20/bundles-skills --skill tdd-juanms20

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: tdd
Source: https://github.com/JuanMS20/bundles-skills/tree/main/skills/matt-pocock/tdd
Command: npx skills add https://github.com/JuanMS20/bundles-skills --skill tdd-juanms20

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps to implement Test-Driven Development (TDD) for building or fixing features, ensuring robust code through a structured testing approach.

Core Features & Use Cases

Test-First Development: Encourages writing tests before writing the actual code.
Red-Green-Refactor Loop: Guides through the cycle of writing a failing test (RED), making it pass with minimal code (GREEN), and refactoring to improve design (REFACTOR).
Use Case: When a user wants to add a new feature to a web application, this Skill can be used to write tests for that feature first, ensuring it meets the required specifications.

Quick Start

Use the tdd skill to start a new TDD cycle for a feature development task.

Frequently Asked Questions about tdd

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

What is the red-green-refactor loop in test-driven development?▼

Test-driven development ensures robust code by structuring feature creation around writing tests before implementation, validating specifications upfront, and continuously refactoring to maintain design quality throughout the development workflow.

How do I start a test-first development cycle for a new feature?▼

To start test-first development for a new feature, you begin by defining and writing tests for the required specifications before writing any actual code, ensuring the feature meets expectations from the very first step of the development cycle.

Do I need to know specific testing frameworks to implement TDD?▼

You need a basic understanding of coding concepts and familiarity with testing frameworks to implement TDD. This Skill facilitates the structured process but relies on your foundational knowledge to execute the tests effectively.

When should I use test-driven development for building features?▼

You should use test-driven development when building or fixing features that require robust code and strict adherence to specifications, ensuring the implementation is validated by a structured, test-first approach from the start.

What are the limitations of using a strict test-first coding approach?▼

A strict test-first coding approach requires upfront specification clarity and familiarity with testing frameworks, potentially slowing initial development speed if the feature requirements are highly volatile or poorly defined.